Build your own collaboration platform

ONLYOFFICE Groups, free and open-source online collaboration platform

Released under Apache license

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Use together with ONLYOFFICE Docs

  • Create, edit, and co-author text documents, spreadsheets, and presentations stored in Documents module.
  • Work on project documentation.
  • Make attachments to mail messages.
  • Organize mass mailing, and more with ONLYOFFICE Docs.

Highest compatibility with MS Office formats.

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Customize to your needs


Connect your collaboration platform with external services for logging, signing, authentication, or storage.

Find the apps you need
Branding options

Personalize your collaboration platform with built-in color themes, replace logos, titles, links.

Powerful API

Create custom modules and tools and easily connect them to the collaboration platform.

Visit API docs

Open Source

It’s not just about being free of charge, it means everyone can freely contribute to the project, extend its functionality, and customize to meet their team requirements.

Open on GitHub

1M+ installations

1K+ stars

Easily install and configure

Easy start

Deploy ONLYOFFICE Groups locally using various installation options: .deb/.rpm/.exe, Docker, etc.

Data security and control

Two-factor authentication. Flexible access rights. Data backup and restore, logging and monitoring tools, and more.

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Manage ONLYOFFICE Groups using an intuitive admin area. Customize and configure with ease.